When did mass from Latin to English?

The transition of the Mass from Latin to English began in earnest after the Second Vatican Council, which took place from 1962 to 1965. The council's reforms, particularly the 1963 document "Sacrosanctum Concilium," allowed for the use of vernacular languages in the liturgy. As a result, English translations of the Mass began to be implemented in the Catholic Church in the late 1960s, with the first complete English translation of the Roman Missal published in 1973. Subsequent revisions and updates continued into the 21st century, with a new translation introduced in 2011.